Noise reduction methods, devices, electronic equipment, and storage media for charging piles

Abstract

This invention provides a method, apparatus, electronic device, and storage medium for noise reduction of charging piles. The method includes: emitting a first sound wave from an air medium toward a first reflective surface, the first sound wave being a noise wave generated by performing a heat dissipation operation on a target charging pile; reflecting the first sound wave through the first reflective surface to generate a second sound wave; reflecting the second sound wave through a second reflective surface to generate a third sound wave; and at least partially canceling out a fifth sound wave, the fifth sound wave being generated by reflecting a fourth sound wave through the first reflective surface, the fourth sound wave being a noise wave incident from the air medium toward the first reflective surface after the first sound wave is emitted and the target charging pile is subjected to a heat dissipation operation. This solution achieves noise reduction of the noise wave generated during heat dissipation of the charging pile and can adapt to charging piles of different shapes by adjusting the first reflective surface.

Description

Technical Field

[0001] The present invention relates to the field of charging technology, and in particular to a method, device, electronic device and storage medium for noise reduction of charging piles. Background Technology

[0002] With the rapid expansion of the electric vehicle market, the demand for charging speeds at charging stations is constantly increasing. Charging power has gradually increased from the initial 20kW to the current 1000kW supercharging level. This significant increase in charging power has resulted in a large amount of heat being generated by the internal power modules of the charging stations during operation. To ensure stable operation and prevent damage to equipment or impact on charging efficiency due to overheating, cooling is commonly achieved by increasing the number and size of fans. However, this increase in the number and size of fans has led to serious noise problems. Charging station equipment is typically installed in densely populated areas, such as residential communities. At close range, noise levels generally exceed 100 decibels. Such high-intensity noise has a significant negative impact on the surrounding environment and people, failing to meet the requirements for low-noise environments in densely populated areas. Summary of the Invention

[0003] This invention provides a method, apparatus, electronic device, and storage medium for noise reduction of charging piles, so as to minimize the equipment noise generated when the charging pile performs efficient and rapid heat dissipation.

[0004] In a first aspect, embodiments of the present invention provide a method for noise reduction processing of charging piles, the method comprising:

[0005] A first sound wave is emitted from the air medium toward the first reflective surface. The first sound wave is a noise sound wave emitted by performing a heat dissipation treatment operation on the target charging pile. The first reflective surface is a concave reflective surface.

[0006] The first sound wave is reflected by the first reflector to generate the second sound wave, and the second sound wave is emitted from the air medium toward the second reflector. The second reflector can make the reflected wave return in the opposite direction to the incident wave when the sound wave is incident perpendicularly to the reflector.

[0007] The second sound wave is reflected by the second reflector to generate the third sound wave, and the third sound wave is at least partially canceled out by the fifth sound wave. The fifth sound wave is generated by reflecting the fourth sound wave by the first reflector. The fourth sound wave is a noise sound wave that is incident from the air medium toward the first reflector after the first sound wave is emitted by performing heat dissipation treatment on the target charging pile.

[0008] Secondly, embodiments of the present invention also provide a charging pile noise reduction processing device, the device comprising:

[0009] The transmitting module is used to transmit a first sound wave from the air medium toward the first reflecting surface. The first sound wave is a noise sound wave emitted by performing a heat dissipation treatment operation on the target charging pile. The first reflecting surface is a concave reflecting surface.

[0010] The generation module is used to generate a second sound wave by reflecting a first sound wave through a first reflecting surface, and to emit the second sound wave from the air medium toward the second reflecting surface. The second reflecting surface enables the reflected wave generated when the sound wave is incident perpendicularly to the reflecting surface to return in the opposite direction to the incident wave.

[0011] The noise reduction module is used to generate a third sound wave by reflecting a second sound wave through a second reflector, and to at least partially cancel out the third sound wave and a fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave through a first reflector. The fourth sound wave is a noise sound wave incident from the air medium toward the first reflector, generated after the first sound wave is emitted by performing a heat dissipation treatment operation on the target charging pile.

[0012] Thirdly, this invention also provides an electronic device, which includes:

[0013] At least one processor; and

[0014] A memory that is communicatively connected to at least one processor; wherein,

[0015] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the charging pile noise reduction processing method according to any one of the embodiments of the present invention.

[0016] Fourthly, the present invention also provides a computer-readable medium storing computer instructions, which are used to cause a processor to execute the charging pile noise reduction method according to any one of the embodiments of the present invention.

[0017] The technical solution of this invention involves emitting a first sound wave from the air medium toward a first reflecting surface. The first sound wave is a noise wave emitted during heat dissipation of a target charging pile. The first reflecting surface is a concave reflecting surface. A second sound wave is generated by reflecting the first sound wave from the first reflecting surface and then emitted from the air medium toward the second reflecting surface. The second reflecting surface ensures that when the sound wave is incident perpendicularly to the reflecting surface, the reflected wave returns in the opposite direction to the incident wave. This achieves the reflection of noise waves emitted by the charging pile in various directions during heat dissipation using a concave reflecting surface, allowing the divergent noise waves to return in parallel. The second reflector reflects a second sound wave to generate a third sound wave, which then cancels out at least partially the fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave through a first reflector. The fourth sound wave is a noise wave incident from the air towards the first reflector, generated after the first sound wave is emitted and the target charging pile is cooled. This achieves a π-phase abrupt change between the third sound wave reflected by the second reflector and the fifth sound wave reflected by the first reflector, thus enabling at least partial cancellation of the noise waves and achieving noise reduction. Furthermore, the noise reduction process for the charging pile does not require additional noise reduction equipment, is simple and reliable in construction, low in cost, and can be adapted to charging piles of different shapes by adjusting the tilt angle of the first reflector without affecting the heat dissipation process of the charging pile.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0019] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0020] Figure 1 This is a flowchart illustrating a noise reduction method for charging piles provided in Embodiment 1 of the present invention.

[0021] Figure 2 This is a schematic diagram of the airflow during the heat dissipation process of a charging pile, provided in Embodiment 1 of the present invention.

[0022] Figure 3 This is a schematic diagram of a noise reduction process for a charging pile noise wave provided in Embodiment 1 of the present invention;

[0023] Figure 4This is a schematic diagram of a half-wave loss principle provided in Embodiment 1 of the present invention;

[0024] Figure 5 This is a flowchart illustrating a noise reduction method for charging piles provided in Embodiment 2 of the present invention.

[0025] Figure 6 This is a schematic diagram of a heat dissipation component of a charging pile configuration according to Embodiment 2 of the present invention, each corresponding to a first reflective surface;

[0026] Figure 7 This is a schematic diagram of a method for drawing in cold air from the outside through a reference silencing chamber, as provided in Embodiment 2 of the present invention.

[0027] Figure 8 This is a schematic diagram of hot air being discharged to the outside through a reference anechoic chamber, according to Embodiment 2 of the present invention.

[0028] Figure 9 This is a schematic diagram of the structure of a charging pile noise reduction device provided in Embodiment 3 of the present invention;

[0029] Figure 10 This is a schematic diagram of an electronic device for implementing a noise reduction method for charging piles, as provided in Embodiment 4 of the present invention. Detailed Implementation

[0030] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the invention. It should be understood that the accompanying drawings and embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention.

[0031] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0032] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0033] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0034] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0035] Example 1

[0036] Figure 1 This is a flowchart illustrating a noise reduction method for charging piles according to Embodiment 1 of the present invention. The technical solution of this embodiment is applicable to the situation of noise reduction of sound waves generated when a charging pile is dissipating heat. The method can be executed by a charging pile noise reduction device, which can be implemented in the form of software and / or hardware, and can be integrated into any electronic device with network communication function, such as a mobile terminal, PC, or server.

[0037] like Figure 1 As shown, the noise reduction method for charging piles in Embodiment 1 of the present invention may include the following processes:

[0038] S101. A first sound wave is emitted from the air medium toward the first reflective surface. The first sound wave is a noise sound wave emitted by performing a heat dissipation treatment operation on the target charging pile. The first reflective surface is a concave reflective surface.

[0039] In this embodiment of the invention, a charging pile is a device that provides electrical energy to electric vehicles. It is typically installed in parking lots, gas stations, commercial areas, residential areas, and other locations. It connects to the power grid to convert AC or DC power into current and voltage suitable for charging electric vehicle batteries, and connects to the electric vehicle via a charging interface to charge the vehicle's battery. The charging pile can support different charging modes, such as fast charging and slow charging. Fast charging can provide a large amount of electrical energy to an electric vehicle in a short time, while slow charging uses lower power, has less impact on battery life, and is suitable for charging during long periods of parking. The target charging pile can be one that requires heat dissipation.

[0040] As charging piles increase in charging power, their internal power modules generate significant heat during operation. Therefore, heat dissipation is necessary to ensure stable operation. However, the heat dissipation components used in this process can generate considerable noise, potentially affecting the surrounding environment and residents. These heat dissipation components are devices that cool the target charging pile, such as fans and exhaust pumps. For example... Figure 2 As shown, the charging pile uses a heat dissipation component, such as a fan, inside. During operation, the heat dissipation component generates an airflow pressure difference near the heat dissipation component, causing the gas inside the charging pile to flow and form an airflow. This allows it to draw in cool air from the outside to remove the heat generated during the operation of the charging pile and expel hot air from the outside. At the same time, the heat dissipation component will also emit noise waves during operation.

[0041] Specifically, when performing heat dissipation treatment on the target charging pile, the noise wave emitted by the heat dissipation component is used as the first sound wave, and the first sound wave is emitted from the air medium toward the first reflecting surface, wherein the first reflecting surface is a concave reflecting surface.

[0042] S102. The first sound wave is reflected by the first reflecting surface to generate a second sound wave, and the second sound wave is emitted from the air medium toward the second reflecting surface. The second reflecting surface enables the sound wave to be reflected back in the opposite direction to the incident wave when it is incident perpendicularly to the reflecting surface.

[0043] Specifically, the sound wave reflected by the first reflecting surface is used as the second sound wave, which is emitted from the air medium toward the second reflecting surface. The second reflecting surface can be the metal casing of the target charging pile, so that the tilt angle of the first reflecting surface can be adjusted according to the shape of the target charging pile casing, allowing the second sound wave to be incident perpendicularly onto the second reflecting surface, thus better adapting to charging piles of different shapes.

[0044] For example, such as Figure 3 As shown, Figure 3 The dashed line ① represents the noise wave emitted during the heat dissipation process of the target charging pile, i.e., the first sound wave. This noise wave can be considered as part of a spherical wave and has divergent properties. Figure 3 The rightmost curved area represents the first reflecting surface. Figure 3 The dashed line ② represents the second sound wave after the first sound wave is reflected by the first reflecting surface. Figure 3The leftmost solid line represents the second reflecting surface. Furthermore, according to the law of reflection, that is, the angle of reflection equals the angle of incidence, when the first sound wave is incident on the first reflecting surface, since the first reflecting surface is a concave reflecting surface, the normal direction of each point on the first reflecting surface is different, and the angle of incidence of the first sound wave at each point on the first reflecting surface is different, and the corresponding angle of reflection is also different. Therefore, the propagation direction of the second sound wave can be controlled by adjusting the curvature of the first reflecting surface, so that the second sound wave generated after the diverging first sound wave is reflected by the first reflecting surface can return horizontally.

[0045] Similarly, according to the law of reflection, when a sound wave is incident perpendicularly to the reflecting surface (i.e., the angle of incidence is 0°), the reflected wave will return in the opposite direction to the incident wave. When a sound wave is incident obliquely to the reflecting surface (i.e., the angle of incidence is not 0°), the reflected wave will be reflected on the other side of the normal to the reflecting surface along the same angle of incidence. Therefore, the second reflecting surface can reflect the reflected wave generated by the perpendicularly incident second sound wave in the opposite direction to the second sound wave.

[0046] S103. A third sound wave is generated by reflecting the second sound wave through the second reflector, and the third sound wave is at least partially canceled out by the fifth sound wave. The fifth sound wave is generated by reflecting the fourth sound wave through the first reflector. The fourth sound wave is a noise sound wave that is incident from the air medium toward the first reflector after the first sound wave is emitted by performing heat dissipation treatment on the target charging pile.

[0047] In this embodiment of the invention, the process of at least partial cancellation between the third and fifth sound waves can be achieved based on the half-wave loss principle of sound wave reflection. That is, when a sound wave is incident perpendicularly from a medium with low wave impedance to a medium with high wave impedance, it is reflected back to the medium with low wave impedance at the interface. The reflected wave and the incident wave will undergo a π-phase change, which corresponds to half a wavelength. Figure 4 As shown, the dashed line represents the third sound wave, which is the second sound wave incident perpendicularly from the air medium onto the metal medium and then returns from the metal medium. The third sound wave undergoes a π-phase abrupt change relative to the subsequent fifth sound wave (represented by the solid line), which propagates along the same direction and path as the second sound wave. At this point, the crest of the third sound wave corresponds to the trough of the fifth sound wave, and vice versa. The superposition of the third and fifth sound waves reduces their amplitudes, thus achieving noise reduction. Therefore, when the wave impedance of the second reflecting surface is greater than the wave impedance of air, the third and fifth sound waves will at least partially cancel each other out based on the half-wave loss principle.

[0048] Specifically, during the heat dissipation process of the target charging pile, the noise wave continuously emitted by the heat dissipation component after emitting the first sound wave can be considered as the fourth sound wave. The fourth sound wave has the same propagation direction and path as the first sound wave and is emitted from the air medium towards the first reflecting surface. The sound wave after the fourth sound wave is reflected by the first reflecting surface can be considered as the fifth sound wave. The fifth sound wave also has the same propagation direction and path as the second sound wave and is emitted from the air medium towards the second reflecting surface. Furthermore, the sound wave after the second sound wave is reflected by the second reflecting surface is considered as the third sound wave. If the wave impedance of the second reflecting surface is set to be greater than the wave impedance of air, the third sound wave will propagate towards the fifth sound wave and at least partially cancel out the sound waves based on the half-wave loss principle. By repeating the above sound wave cancellation process, noise reduction of the sound waves emitted during the heat dissipation process of the target charging pile can be achieved.

[0049] For example, such as Figure 3 As shown, Figure 3 The dashed line ④ represents the noise wave emitted continuously after the first sound wave during the heat dissipation operation on the target charging pile, i.e., the fourth sound wave. Figure 3 The dashed line ⑤ represents the fifth sound wave after the fourth sound wave is reflected by the first reflecting surface. Figure 3 The dashed line ③ represents the third sound wave after the second sound wave is reflected by the second reflecting surface. Furthermore, Figure 3 The third and fifth sound waves propagate towards each other and at least partially cancel each other out.

[0050] As an optional but not limited implementation, a second sound wave generated by the reflection of the first sound wave by the first reflecting surface can be incident perpendicularly on the second reflecting surface, a third sound wave generated by the reflection of the second sound wave by the second reflecting surface can return in the opposite direction to the incident wave, and a fifth sound wave can be incident perpendicularly on the second reflecting surface.

[0051] Specifically, if the second reflecting surface receives the perpendicularly incident second sound wave, the third sound wave reflected by the second reflecting surface will return in the opposite direction to the second sound wave. Simultaneously, the fifth sound wave, which propagates in the same direction as the second sound wave, can also be perpendicularly incident on the second reflecting surface. Furthermore, the propagation directions of the third sound wave reflected by the second reflecting surface are opposite to those of the fifth sound wave, allowing for better sound wave cancellation between the two.

[0052] The technical solution of this invention involves emitting a first sound wave from the air medium toward a first reflecting surface. The first sound wave is a noise wave emitted during heat dissipation of a target charging pile. The first reflecting surface is a concave reflecting surface. A second sound wave is generated by reflecting the first sound wave from the first reflecting surface and then emitted from the air medium toward the second reflecting surface. The second reflecting surface ensures that when the sound wave is incident perpendicularly to the reflecting surface, the reflected wave returns in the opposite direction to the incident wave. This achieves the reflection of noise waves emitted by the charging pile in various directions during heat dissipation using a concave reflecting surface, allowing the divergent noise waves to return in parallel. The second reflector reflects a second sound wave to generate a third sound wave, which then cancels out at least partially the fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave through a first reflector. The fourth sound wave is a noise wave incident from the air towards the first reflector, generated after the first sound wave is emitted and the target charging pile is cooled. This achieves a π-phase abrupt change between the third sound wave reflected by the second reflector and the fifth sound wave reflected by the first reflector, thus enabling at least partial cancellation of the noise waves and achieving noise reduction. Furthermore, the noise reduction process for the charging pile does not require additional noise reduction equipment, is simple and reliable in construction, low in cost, and can be adapted to charging piles of different shapes by adjusting the tilt angle of the first reflector without affecting the heat dissipation process of the charging pile.

[0053] Example 2

[0054] Figure 5 This is a flowchart illustrating a noise reduction method for charging piles provided in Embodiment 2 of the present invention. The technical solution of this embodiment further optimizes the process of emitting a first sound wave from the air medium toward the first reflecting surface in the previous embodiment based on the technical solution of the above embodiment. This embodiment can be combined with various optional solutions in one or more of the above embodiments.

[0055] like Figure 5 As shown, the noise reduction method for charging piles in Embodiment 2 of the present invention may include the following processes:

[0056] S201. The first sound wave generated when performing heat dissipation treatment on the target charging pile is emitted from the reference position area in the air medium. The reference position area is a preset spatial area range centered on the reference position point in the air medium. The reference position point is the focal position of the concave reflective surface corresponding to the first reflective surface.

[0057] Specifically, the noise wave emitted by the heat dissipation components used during the heat dissipation process of the target charging pile is taken as the first sound wave, and this first sound wave is emitted from a reference position area in the air medium. The reference position area is a preset spatial region centered on the focal point of the concave reflective surface corresponding to the first reflective surface. The smaller the reference position area, the greater the probability that the first sound wave is emitted from the focal point of the concave reflective surface, and the better the parallelism of the sound wave after reflection by the first reflective surface. For example, the reference position area can be a spherical region with a radius of 5cm centered on the focal point of the concave reflective surface corresponding to the first reflective surface.

[0058] As an optional but not limited implementation, the first sound wave generated during the heat dissipation operation on the target charging pile is emitted from a reference location region in the air medium, including the following steps A1-A3:

[0059] Step A1: The gas inside the target charging pile is driven to flow by at least two heat dissipation components configured on the target charging pile to form airflow corresponding to each heat dissipation component, so as to exhaust the heat generated inside the target charging pile. The target charging pile is associated with a first reflective surface, which is shared by at least two heat dissipation components.

[0060] Step A2: When at least two heat dissipation components drive the gas inside the target charging pile to flow, the noise sound waves emitted by each heat dissipation component are superimposed by the sound wave guiding component. The sound wave guiding component is used to change the propagation path and characteristics of the sound waves to converge and superimpose the noise sound waves generated by each heat dissipation component.

[0061] Step A3: The first sound wave generated by superimposing sound waves through the sound wave guiding component is emitted from the reference position region in the air medium.

[0062] In this embodiment of the invention, each heat dissipation component generates noise waves during operation. Therefore, a sound wave guiding component can be used to converge and superimpose the noise waves generated by each heat dissipation component. The process of noise wave convergence and superposition can be based on the principles of acoustic wave interference and constructive interference, or the principles of waveguides and resonant cavities. The principle of acoustic wave interference states that when multiple sound waves meet preset phase and amplitude conditions, sound wave superposition can be achieved. Furthermore, if multiple sound waves are in phase (i.e., the phase difference is 0 or an integer multiple of 2π), constructive interference will occur. For example, the sound wave guiding component can adjust the frequency and phase of the emitted noise waves by controlling the rotational speed of at least two heat dissipation components, so that at least two noise waves meet the preset phase and amplitude conditions, thereby enabling at least two noise waves to converge and superimpose based on the principles of acoustic wave interference and constructive interference.

[0063] The waveguide and resonant cavity principle refers to using waveguides and resonant cavities to alter the propagation path and characteristics of sound waves. A waveguide is a structure that guides sound waves along a specific direction, while a resonant cavity is a structure that amplifies sound waves at a specific frequency. For example, a sound wave guiding component can consist of a waveguide and a resonant cavity. The waveguide can be made of an acoustically sound-properly-oriented material in the form of a pipe and connected to the air outlets of at least two heat dissipation components. The size and shape of the resonant cavity can be set based on matching the resonant frequency of the cavity with the dominant frequency of the noise sound wave. Furthermore, the sound wave guiding component can guide the noise sound waves from each heat dissipation component to converge into the resonant cavity via the waveguide. Simultaneously, the sound wave guiding component can superimpose the converged noise sound waves from each heat dissipation component via the resonant cavity.

[0064] Specifically, the acoustic wave guiding component can converge and superimpose the noise waves generated by at least two heat dissipation components when cooling the target charging pile. The target charging pile is associated with only one first reflecting surface, and the at least two heat dissipation components configured on the target charging pile share this first reflecting surface. Correspondingly, the target charging pile is also associated with only one reference position region. Furthermore, the noise waves converged and superimposed by the acoustic wave guiding component can be used as the first sound wave and emitted from the reference position region in the air medium. This allows the target charging pile to achieve noise reduction using only one first reflecting surface, simplifying the construction and reducing subsequent maintenance costs for the first reflecting surface.

[0065] As an optional but not limited implementation, the first sound wave generated during the heat dissipation operation on the target charging pile is emitted from a reference location region in the air medium, including the following steps B1-B2:

[0066] Step B1: For each of the at least one heat dissipation components configured on the target charging pile, the gas inside the target charging pile is driven to flow through each heat dissipation component to form an airflow corresponding to each heat dissipation component. The target charging pile is associated with at least two first reflective surfaces, and each of the at least one heat dissipation components uses a first reflective surface.

[0067] Step B2: The noise wave emitted by each heat dissipation component when it drives the gas inside the target charging pile to flow is taken as the first sound wave and emitted from the reference position area in the air medium.

[0068] Specifically, at least one heat dissipation component configured in the target charging pile can correspond to a first reflective surface, and each first reflective surface can also correspond to a reference position area. Furthermore, when the at least one heat dissipation component in the target charging pile dissipates heat, the noise wave generated by each heat dissipation component can be used as a first sound wave and emitted in its corresponding reference position area. This eliminates the need for additional sound wave guiding components, reducing economic costs. Moreover, the closer proximity of the heat dissipation component to the first reflective surface results in better noise reduction.

[0069] For example, such as Figure 6 As shown in the figure, the yellow circular area on the left is the reference position area corresponding to each heat dissipation component, the black dashed line is the first sound wave corresponding to each heat dissipation component, and the dark blue curved area on the right is the first reflective surface corresponding to each heat dissipation component. Thus, the first sound wave generated by each heat dissipation component can be emitted from the corresponding reference area toward the corresponding first reflective surface to improve the noise reduction effect of the sound wave.

[0070] As an optional but not limited implementation, the heat dissipation component is used to apply pressure to the gas to make the gas flow and form an airflow. Each heat dissipation component is associated with a corresponding ventilation duct. When performing heat dissipation operations, each heat dissipation component can input cold air to the heat dissipation component through the ventilation duct or output hot air carrying the heat inside the target charging pile.

[0071] Specifically, each heat dissipation component can be associated with a ventilation duct. This allows the heat dissipation component to draw in cool air to cool the target charging pile, or to expel hot air after cooling the target charging pile through the corresponding ventilation duct. Simultaneously, the ventilation ducts associated with the heat dissipation components can connect to underground cable ducts, enabling the heat dissipation components to draw in cool air from these ducts to cool the target charging pile. This prevents the heat dissipation components from being unable to draw in cool air due to hot external weather, improving the charging pile's heat dissipation efficiency. Furthermore, connecting the ventilation ducts to the underground cable ducts allows for a more rational layout of the ventilation system, reducing conflicts and interference between devices.

[0072] S202, The first sound wave emitted from the reference position region in the air medium propagates toward the first reflecting surface.

[0073] Specifically, the first sound wave can be propagated from the reference position area in the air medium toward the first reflecting surface to improve the parallelism of the sound wave after it is reflected by the first reflecting surface, thereby achieving better noise reduction of the sound wave.

[0074] As an optional but not limited implementation, the first sound wave emitted from a reference position region in the air medium propagates toward the first reflecting surface, including:

[0075] The first sound wave emitted from the reference position region in the air medium propagates toward the first reflecting surface disposed in the reference anechoic chamber. The reference anechoic chamber has a spatial structure with closed or semi-closed features and can limit the propagation range of the first sound wave, so that the first sound wave is reflected multiple times and absorbs sound wave energy inside the spatial structure with closed or semi-closed features.

[0076] In this embodiment of the invention, the target charging pile can be configured with a reference anechoic chamber, and a first reflecting surface can be disposed within the reference anechoic chamber. The reference anechoic chamber is a spatial structure with closed or semi-closed characteristics, and its interior is hollow, meaning the propagation medium is air. The chamber walls can be made of metal. Furthermore, when the first sound wave propagates towards the first reflecting surface disposed within the reference anechoic chamber, due to the difference in wave impedance between the chamber walls and the internal medium, most of the sound wave propagating to the chamber walls is reflected back. Simultaneously, after multiple reflections by the chamber walls, multiple reflected waves are generated within the reference anechoic chamber. Different sound waves within the chamber interfere with each other and absorb energy. For example, when the phases of different sound waves within the reference anechoic chamber meet certain conditions, destructive interference occurs, causing the peaks and troughs of different sound waves within the chamber to cancel each other out, thereby reducing the intensity of the noise wave.

[0077] A reference anechoic chamber can also be viewed as a resonant cavity. When the frequency of the sound waves inside the chamber is close to or equal to the chamber's natural frequency, resonance occurs. This causes the air molecules inside the chamber to vibrate violently and interact with the vibrations of the sound waves, thus dissipating their energy. Simultaneously, the chamber walls can be constructed using sound-absorbing materials such as mineral wool, glass wool, polyester fiber sound-absorbing panels, and sound-absorbing felt to directly absorb the energy of the sound waves propagating to the walls. An additional sound-absorbing layer can also be added to the chamber walls to further enhance noise reduction capabilities.

[0078] As an optional but not limited implementation, the reference anechoic chamber is pre-configured with at least one vent. The cool air required for the heat dissipation operation of the target charging pile can be drawn into the target charging pile through the vent to carry away the heat generated inside the target charging pile.

[0079] In this embodiment of the invention, the walls of the reference anechoic chamber may be pre-configured with at least one ventilation opening, so that the heat dissipation components configured for the target charging pile can draw in cool air from the outside or expel hot air after cooling the target charging pile through the ventilation openings. For example, as shown... Figure 7 and Figure 8 As shown, a ventilation opening is located at the bottom of the reference anechoic chamber wall, and the target charging station is equipped with multiple heat dissipation components. Figure 7 In the middle, the heat dissipation component draws in cool air from the outside through the vents located below the soundproof chamber, generating an airflow from right to left to carry away the heat generated by the target charging pile during operation, thus dissipating heat from the target charging pile body. Figure 8 In the middle, the heat dissipation component generates airflow from left to right, and exhausts the hot air after the target charging pile body is cooled out through the ventilation port configured below the reference silencing chamber.

[0080] S203. The first sound wave is reflected by the first reflecting surface to generate a second sound wave, and the second sound wave is emitted from the air medium toward the second reflecting surface. The second reflecting surface can make the reflected wave return in the opposite direction to the incident wave when the sound wave is incident perpendicularly to the reflecting surface.

[0081] S204. A third sound wave is generated by reflecting the second sound wave through the second reflector, and the third sound wave is at least partially canceled out by the fifth sound wave. The fifth sound wave is generated by reflecting the fourth sound wave through the first reflector. The fourth sound wave is a noise sound wave that is incident from the air medium toward the first reflector after the first sound wave is emitted by performing heat dissipation treatment on the target charging pile.

[0082] The technical solution of this invention involves emitting a first sound wave generated during heat dissipation of a target charging pile from a reference position region in the air. The reference position region is a preset spatial area centered on a reference point in the air, and the reference point is the focal point of the concave reflective surface corresponding to the first reflective surface. The first sound wave emitted from the reference position region in the air propagates towards the first reflective surface. The first reflective surface reflects the first sound wave to generate a second sound wave, which is then emitted from the air towards the second reflective surface. The second reflective surface ensures that when the sound wave is perpendicularly incident on the reflective surface, the reflected wave returns in the opposite direction to the incident wave. This achieves the reflection of noise sound waves emitted by the charging pile in various directions during heat dissipation using the concave reflective surface, and also reflects the noise sound waves generated during heat dissipation of the charging pile from the first reflective surface. The concave reflector's focal area is directed towards the first reflector to enhance the parallelism of the noise wave after reflection, allowing it to return more parallel and improving noise reduction. A second reflector reflects the second sound wave to generate a third sound wave, which then cancels out at least partially the fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave from the first reflector. This fourth sound wave is generated after the first sound wave is emitted and the target charging pile is cooled, resulting in noise incident from the air towards the first reflector. This design achieves a π-phase abrupt change between the third and fifth sound waves reflected by the second and first reflectors, allowing for at least partial cancellation and noise reduction. Furthermore, the noise reduction process for the charging pile does not require additional noise reduction equipment, is simple and reliable, low-cost, and can be adapted to different charging pile shapes by adjusting the tilt angle of the first reflector without affecting the charging pile's cooling process.

[0083] Example 3

[0084] Figure 9 This is a schematic diagram of a charging pile noise reduction device provided in Embodiment 3 of the present invention. The technical solution of the present invention is applicable to the situation of noise reduction of the sound waves generated when the charging pile is dissipating heat. The charging pile noise reduction device can be implemented in the form of software and / or hardware, and is generally integrated on any electronic device with network communication function, such as a mobile terminal, PC or server.

[0085] like Figure 9 As shown, the charging pile noise reduction device of Embodiment 3 of the present invention may include the following:

[0086] The transmitting module 301 is used to transmit a first sound wave from the air medium toward the first reflecting surface. The first sound wave is a noise sound wave emitted by performing a heat dissipation treatment operation on the target charging pile. The first reflecting surface is a concave reflecting surface.

[0087] The generation module 302 is used to generate a second sound wave by reflecting the first sound wave through the first reflecting surface, and to emit the second sound wave from the air medium toward the second reflecting surface. The second reflecting surface enables the reflected wave generated when the sound wave is incident perpendicularly to the reflecting surface to return in the opposite direction to the incident wave.

[0088] The noise reduction module 303 is used to generate a third sound wave by reflecting a second sound wave through a second reflector, and to at least partially cancel out the third sound wave and a fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave through a first reflector. The fourth sound wave is a noise sound wave incident from the air medium toward the first reflector, generated after the first sound wave is emitted by performing a heat dissipation treatment operation on the target charging pile.

[0089] Based on the above embodiments, optionally, emitting a first sound wave from the air medium toward the first reflecting surface includes:

[0090] The first sound wave generated when performing heat dissipation treatment on the target charging pile will be emitted from the reference position area in the air medium. The reference position area is a preset spatial area centered on the reference position point in the air medium. The reference position point is the focal position of the concave reflective surface corresponding to the first reflective surface.

[0091] The first sound wave emitted from the reference position region in the air medium will propagate toward the first reflecting surface.

[0092] Based on the above embodiments, optionally, the first sound wave generated during the heat dissipation operation on the target charging pile is emitted from a reference position region in the air medium, including:

[0093] At least two heat dissipation components configured on the target charging pile drive the gas inside the target charging pile to flow, forming airflow corresponding to each heat dissipation component, in order to exhaust the heat generated inside the target charging pile. The target charging pile is associated with a first reflective surface, which is shared by at least two heat dissipation components.

[0094] When at least two heat dissipation components drive the gas inside the target charging pile to flow, the noise sound waves emitted by each heat dissipation component are superimposed by the sound wave guiding component. The sound wave guiding component is used to change the propagation path and characteristics of the sound waves to converge and superimpose the noise sound waves generated by each heat dissipation component.

[0095] The first sound wave, generated by superimposing sound waves through a sound wave guiding component, is emitted from the reference position region in the air medium.

[0096] Based on the above embodiments, optionally, the first sound wave generated during the heat dissipation operation on the target charging pile is emitted from a reference position region in the air medium, including:

[0097] For each of the at least one heat dissipation components configured on the target charging pile, the gas inside the target charging pile is driven to flow through each heat dissipation component to form an airflow corresponding to each heat dissipation component. The target charging pile is associated with at least two first reflective surfaces, and each of the at least one heat dissipation components uses a first reflective surface.

[0098] The noise wave emitted by each heat dissipation component when it drives the gas flow inside the target charging pile is taken as the first sound wave and emitted from the reference position area in the air medium.

[0099] Based on the above embodiments, optionally, the heat dissipation component is used to apply pressure to the gas to make the gas flow and form an airflow. Each heat dissipation component is associated with a corresponding ventilation duct. When performing heat dissipation processing, each heat dissipation component can input cold air to the heat dissipation component through the ventilation duct or output hot air carrying the heat inside the target charging pile.

[0100] Based on the above embodiments, optionally, a second sound wave generated by the reflection of the first sound wave by the first reflecting surface can be incident perpendicularly on the second reflecting surface, a third sound wave generated by the reflection of the second sound wave by the second reflecting surface can return in the opposite direction to the incident wave, and a fifth sound wave can be incident perpendicularly on the second reflecting surface.

[0101] Based on the above embodiments, optionally, the first sound wave emitted from the reference position region in the air medium propagates toward the first reflecting surface, including:

[0102] The first sound wave emitted from the reference position region in the air medium propagates toward the first reflecting surface disposed in the reference anechoic chamber. The reference anechoic chamber has a spatial structure with closed or semi-closed features and can limit the propagation range of the first sound wave, so that the first sound wave is reflected multiple times and absorbs sound wave energy inside the spatial structure with closed or semi-closed features.

[0103] Based on the above embodiments, optionally, at least one vent is pre-configured on the anechoic chamber, and the cold air required for performing heat dissipation on the target charging pile can be drawn into the target charging pile through the vent to carry away the heat generated inside the target charging pile.

[0104] The technical solution of this invention involves emitting a first sound wave from the air medium toward a first reflecting surface. The first sound wave is a noise wave emitted during heat dissipation of a target charging pile. The first reflecting surface is a concave reflecting surface. A second sound wave is generated by reflecting the first sound wave from the first reflecting surface and then emitted from the air medium toward the second reflecting surface. The second reflecting surface ensures that when the sound wave is incident perpendicularly to the reflecting surface, the reflected wave returns in the opposite direction to the incident wave. This achieves the reflection of noise waves emitted by the charging pile in various directions during heat dissipation using a concave reflecting surface, allowing the divergent noise waves to return in parallel. The second reflector reflects a second sound wave to generate a third sound wave, which then cancels out at least partially the fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave through a first reflector. The fourth sound wave is a noise wave incident from the air towards the first reflector, generated after the first sound wave is emitted and the target charging pile is cooled. This achieves a π-phase abrupt change between the third sound wave reflected by the second reflector and the fifth sound wave reflected by the first reflector, thus enabling at least partial cancellation of the noise waves and achieving noise reduction. Furthermore, the noise reduction process for the charging pile does not require additional noise reduction equipment, is simple and reliable in construction, low in cost, and can be adapted to charging piles of different shapes by adjusting the tilt angle of the first reflector without affecting the heat dissipation process of the charging pile.

[0105] The charging pile noise reduction processing device provided in the embodiments of the present invention can execute the charging pile noise reduction processing method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the charging pile noise reduction processing method.

[0106] It is worth noting that the various units and modules included in the above-mentioned device are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the protection scope of the embodiments of the present invention.

[0107] Example 4

[0108] Figure 10 This is a schematic diagram of an electronic device for implementing a noise reduction method for charging piles, provided in Embodiment 4 of the present invention. See below for reference. Figure 10 It illustrates an electronic device suitable for implementing embodiments of the present invention (e.g., Figure 10The diagram below shows the structure of the terminal device or server 400. The terminal device in this embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and vehicle terminals (e.g., vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Figure 10 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0109] like Figure 10 As shown, electronic device 400 may include a processing unit (e.g., a central processing unit, a graphics processing unit, etc.) 401, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 402 or a program loaded from storage device 408 into random access memory (RAM) 403. The RAM 403 also stores various programs and data required for the operation of electronic device 400. The processing unit 401, ROM 402, and RAM 403 are interconnected via bus 404. An edit / output (I / O) interface 405 is also connected to bus 404.

[0110] Typically, the following devices can be connected to I / O interface 405: input devices 406 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 407 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 408 including, for example, magnetic tapes, hard disks, etc.; and communication devices 409. Communication device 409 allows electronic device 400 to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 10 An electronic device 400 with various devices is shown; however, it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed alternatively.

[0111] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the charging pile noise reduction processing method shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 409, or installed from a storage device 408, or installed from a ROM 402. When the computer program is executed by the processing device 401, it performs the functions defined in the charging pile noise reduction processing method of the embodiments of the present invention.

[0112] The names of the messages or information exchanged between the multiple devices in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0113] The electronic device provided in this embodiment of the invention and the charging pile noise reduction method provided in the above embodiments belong to the same inventive concept. Technical details not described in detail in this embodiment can be found in the above embodiments, and this embodiment has the same beneficial effects as the above embodiments.

[0114] This invention provides a computer storage medium storing a computer program that, when executed by a processor, implements the charging pile noise reduction method provided in the above embodiments.

[0115] It should be noted that the computer-readable medium described above in this invention can be a computer-readable signal medium, a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this invention, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0116] In some implementations, clients and servers can communicate using any currently known or future-developed network protocol such as HTTP (Hypertext Transfer Protocol) and can interconnect with digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include local area networks (“LANs”), wide area networks (“WANs”), the Internet (e.g., the Internet of Things), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future-developed networks.

[0117] The aforementioned computer-readable medium may be included in the aforementioned electronic device; or it may exist independently and not assembled into the electronic device.

[0118] The aforementioned computer-readable medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: emit a first sound wave from the air medium toward a first reflective surface, the first sound wave being a noise sound wave emitted by performing a heat dissipation operation on the target charging pile, the first reflective surface being a concave reflective surface; generate a second sound wave by reflecting the first sound wave through the first reflective surface, and emit the second sound wave from the air medium toward the second reflective surface, the second reflective surface enabling the reflected wave generated when the sound wave is perpendicularly incident on the reflective surface to return in the opposite direction to the incident wave; generate a third sound wave by reflecting the second sound wave through the second reflective surface, and at least partially cancel out the third sound wave with a fifth sound wave, the fifth sound wave being generated by reflecting a fourth sound wave through the first reflective surface, the fourth sound wave being a noise sound wave incident from the air medium toward the first reflective surface after the emission of the first sound wave by performing a heat dissipation operation on the target charging pile.

[0119] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof, including but not limited to object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0120] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0121] The units described in the embodiments of the present invention can be implemented in software or in hardware. The name of a unit does not necessarily limit the unit itself; for example, the first acquisition unit can also be described as "a unit that acquires at least two Internet Protocol addresses".

[0122] The functions described above in this document can be performed at least in part by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), system-on-a-chip (SoCs), complex programmable logic devices (CPLDs), and so on.

[0123] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0124] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.

[0125] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0126] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A method for noise reduction in charging piles, characterized in that, The method includes: The first sound wave is emitted from the air medium toward the first reflective surface. The first sound wave is a noise wave generated by performing a heat dissipation treatment operation on the target charging pile. The first reflective surface is a concave reflective surface. Emitting the first sound wave from the air medium toward the first reflective surface includes: emitting the first sound wave generated during the heat dissipation treatment operation on the target charging pile from a reference position region in the air medium, where the reference position region is the focal position of the concave reflective surface corresponding to the first reflective surface; the target charging pile is equipped with at least two heat dissipation components; the target charging pile is associated with one first reflective surface and the noise wave emitted by the at least two heat dissipation components is emitted from a reference position region, or the target charging pile is associated with at least two first reflective surfaces and the noise wave emitted by each of the at least two heat dissipation components is emitted from its corresponding reference position region; and the first sound wave emitted from the reference position region in the air medium propagates toward the first reflective surface. The first sound wave is reflected by the first reflector to generate a second sound wave, and the second sound wave is emitted from the air medium toward the second reflector. The second reflector enables the sound wave to be reflected back in the opposite direction to the incident wave when it is incident perpendicularly to the reflector. The second sound wave is incident perpendicularly to the second reflector, which is the metal shell of the target charging pile. The second sound wave is reflected by the second reflector to generate a third sound wave, and the third sound wave cancels out at least part of the fifth sound wave. The fifth sound wave is generated by reflecting a fourth sound wave by the first reflector. The fourth sound wave is a noise sound wave incident from the air medium toward the first reflector, generated by heat dissipation treatment of the target charging pile after the first sound wave is emitted.

2. The method according to claim 1, characterized in that, The first sound wave generated during the heat dissipation process of the target charging pile will be emitted from a reference location region in the air medium, including: At least two heat dissipation components configured on the target charging pile drive the gas inside the target charging pile to flow, forming airflow corresponding to each heat dissipation component, in order to exhaust the heat generated inside the target charging pile. The target charging pile is associated with a first reflective surface, which is shared by the at least two heat dissipation components. When at least two heat dissipation components drive the gas inside the target charging pile to flow, the noise sound waves emitted by each heat dissipation component are superimposed by the sound wave guiding component. The sound wave guiding component is used to change the propagation path and characteristics of the sound waves to converge and superimpose the noise sound waves generated by each heat dissipation component. The first sound wave, generated by superimposing sound waves through a sound wave guiding component, is emitted from the reference position region in the air medium.

3. The method according to claim 1, characterized in that, The first sound wave generated during the heat dissipation process of the target charging pile will be emitted from a reference location region in the air medium, including: For each of the at least one heat dissipation components configured on the target charging pile, the gas inside the target charging pile is driven to flow through each heat dissipation component to form an airflow corresponding to each heat dissipation component. The target charging pile is associated with at least two first reflective surfaces, and each of the at least one heat dissipation components uses a first reflective surface. The noise wave emitted by each heat dissipation component when it drives the gas flow inside the target charging pile is taken as the first sound wave and emitted from the reference position area in the air medium.

4. The method according to claim 1, characterized in that, The second sound wave generated by the reflection of the first sound wave by the first reflector can be incident perpendicularly on the second reflector. The third sound wave generated by the reflection of the second sound wave by the second reflector returns in the opposite direction to the incident wave, and the fifth sound wave can be incident perpendicularly on the second reflector.

5. The method according to claim 1, characterized in that, The first sound wave emitted from the reference position region in the air medium propagates toward the first reflecting surface, including: A first sound wave emitted from a reference location region in the air medium propagates toward a first reflecting surface disposed in a reference anechoic chamber. The reference anechoic chamber has a spatial structure with closed or semi-closed features, and the reference anechoic chamber can limit the propagation range of the first sound wave so that the first sound wave is reflected multiple times and absorbs sound wave energy within the closed or semi-closed spatial structure.

6. The method according to claim 5, characterized in that, The reference silencing chamber is pre-configured with at least one ventilation opening. The cool air required for the heat dissipation operation of the target charging pile can be drawn into the target charging pile through the ventilation opening to carry away the heat generated inside the target charging pile.

7. A noise reduction device for charging piles, characterized in that, The device includes: A transmitting module is configured to emit a first sound wave from an air medium toward a first reflective surface, the first sound wave being a noise sound wave generated by performing a heat dissipation treatment operation on a target charging pile, the first reflective surface being a concave reflective surface; emitting the first sound wave from the air medium toward the first reflective surface includes: emitting the first sound wave generated during the heat dissipation treatment operation on the target charging pile starting from a reference position region in the air medium, the reference position region being the focal position of the concave reflective surface corresponding to the first reflective surface, the target charging pile being configured with at least two heat dissipation components; the target charging pile being associated with one first reflective surface and the noise sound waves emitted by the at least two heat dissipation components starting from a reference position region, or the target charging pile being associated with at least two first reflective surfaces and the noise sound waves emitted by each of the at least two heat dissipation components starting from their respective reference position regions; and propagating the first sound wave emitted from the reference position region in the air medium toward the first reflective surface. The generation module is used to generate a second sound wave by reflecting the first sound wave through the first reflector, and to emit the second sound wave from the air medium toward the second reflector. The second reflector enables the reflected wave generated when the sound wave is incident perpendicularly to the reflector to return in the opposite direction to the incident wave. The second sound wave is incident perpendicularly to the second reflector, which is the metal shell of the target charging pile. The noise reduction module is used to generate a third sound wave by reflecting the second sound wave through the second reflector surface, and to at least partially cancel out the third sound wave and the fifth sound wave. The fifth sound wave is generated by reflecting the fourth sound wave through the first reflector surface. The fourth sound wave is a noise sound wave incident from the air medium toward the first reflector surface, generated by heat dissipation treatment of the target charging pile after the first sound wave is emitted.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the charging pile noise reduction processing method according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that are used to cause a processor to execute the charging pile noise reduction processing method according to any one of claims 1-6.

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